.maintenance-guide[data-astro-cid-ngnkntkh]{background:var(--paper)}.maintenance-hero[data-astro-cid-ngnkntkh]{background:linear-gradient(120deg,#14243ff7,#14243fbd),url(/images/Background_Images/hvac_tools_flat_lay_background.jpg) center / cover}.maintenance-hero[data-astro-cid-ngnkntkh] .longform-answer-card[data-astro-cid-ngnkntkh] p[data-astro-cid-ngnkntkh]{color:var(--ink)!important}.maintenance-module[data-astro-cid-ngnkntkh]{position:relative}.maintenance-answer-grid[data-astro-cid-ngnkntkh],.maintenance-sign-grid[data-astro-cid-ngnkntkh]{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.maintenance-card[data-astro-cid-ngnkntkh]{min-width:0;padding:26px;border:1px solid var(--line);border-radius:12px;background:var(--white);box-shadow:var(--shadow)}.maintenance-card[data-astro-cid-ngnkntkh]>span[data-astro-cid-ngnkntkh],.maintenance-label[data-astro-cid-ngnkntkh]{display:block;margin-bottom:12px;color:var(--heat);font-size:.76rem;font-weight:900;letter-spacing:.1em;text-transform:uppercase}.maintenance-card[data-astro-cid-ngnkntkh] h3[data-astro-cid-ngnkntkh]{margin:0 0 10px;color:var(--ink);font-size:1.35rem;line-height:1.1}.maintenance-card[data-astro-cid-ngnkntkh] p[data-astro-cid-ngnkntkh]{margin:0;color:var(--muted);line-height:1.65}.maintenance-visit-section[data-astro-cid-ngnkntkh]{padding-top:0}.maintenance-task-grid[data-astro-cid-ngnkntkh]{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:28px 0}.maintenance-task-grid[data-astro-cid-ngnkntkh] article[data-astro-cid-ngnkntkh]{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:start;padding:15px;border-top:1px solid var(--line)}.maintenance-task-grid[data-astro-cid-ngnkntkh] span[data-astro-cid-ngnkntkh]{color:var(--heat);font-size:.82rem;font-weight:900}.maintenance-task-grid[data-astro-cid-ngnkntkh] p[data-astro-cid-ngnkntkh]{margin:0;color:var(--ink);font-weight:750;line-height:1.45}.maintenance-source-note[data-astro-cid-ngnkntkh]{padding-top:20px;border-top:1px solid var(--line);font-size:.95rem}.maintenance-side-card[data-astro-cid-ngnkntkh]{margin-bottom:16px}.maintenance-side-card[data-astro-cid-ngnkntkh] h2[data-astro-cid-ngnkntkh]{text-transform:none}.maintenance-dark[data-astro-cid-ngnkntkh]{padding:clamp(68px,9vw,112px) 0;background:var(--night);color:var(--white)}.maintenance-dark-grid[data-astro-cid-ngnkntkh]{display:grid;grid-template-columns:minmax(0,.76fr) minmax(0,1.24fr);gap:clamp(30px,7vw,100px);align-items:start}.maintenance-dark[data-astro-cid-ngnkntkh] h2[data-astro-cid-ngnkntkh]{max-width:640px;color:var(--white);font-size:clamp(2.2rem,5vw,4.8rem);line-height:1;text-transform:none}.maintenance-dark[data-astro-cid-ngnkntkh] .longform-kicker[data-astro-cid-ngnkntkh]{color:var(--heat-soft)}.maintenance-dark[data-astro-cid-ngnkntkh]>.container[data-astro-cid-ngnkntkh]>div[data-astro-cid-ngnkntkh]>p[data-astro-cid-ngnkntkh]{max-width:620px;color:#ffffffc7;line-height:1.7}.maintenance-home-grid[data-astro-cid-ngnkntkh]{display:grid;gap:12px}.maintenance-home-grid[data-astro-cid-ngnkntkh] article[data-astro-cid-ngnkntkh]{padding:22px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:#ffffff0f}.maintenance-home-grid[data-astro-cid-ngnkntkh] h3[data-astro-cid-ngnkntkh]{margin:0 0 8px;color:var(--white);font-size:1.24rem}.maintenance-home-grid[data-astro-cid-ngnkntkh] p[data-astro-cid-ngnkntkh]{margin:0;color:#ffffffc2;line-height:1.6}.maintenance-safety-note[data-astro-cid-ngnkntkh]{display:grid;grid-template-columns:minmax(0,.42fr) minmax(0,1fr);gap:26px;margin-top:18px;padding:22px 24px;border:1px solid var(--heat);background:var(--night);color:var(--white)}.maintenance-safety-note[data-astro-cid-ngnkntkh] strong[data-astro-cid-ngnkntkh]{color:var(--heat-soft)}.maintenance-safety-note[data-astro-cid-ngnkntkh] span[data-astro-cid-ngnkntkh]{color:#ffffffc7;line-height:1.6}.maintenance-question-list[data-astro-cid-ngnkntkh]{display:grid;gap:10px;margin-top:26px}.maintenance-question-list[data-astro-cid-ngnkntkh] p[data-astro-cid-ngnkntkh]{display:grid;grid-template-columns:30px 1fr;gap:10px;align-items:start;margin:0;padding:13px 0;border-top:1px solid var(--line);color:var(--ink);font-weight:800}.maintenance-question-list[data-astro-cid-ngnkntkh] span[data-astro-cid-ngnkntkh]{display:grid;width:25px;height:25px;place-items:center;border-radius:50%;background:var(--heat);color:var(--white)}.maintenance-decision-card[data-astro-cid-ngnkntkh]{border:1px solid var(--heat)}.maintenance-next[data-astro-cid-ngnkntkh]{padding:clamp(68px,9vw,112px) 0;background:var(--blue-soft)}.maintenance-next-grid[data-astro-cid-ngnkntkh]{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.62fr);gap:clamp(30px,7vw,100px);align-items:center}.maintenance-next[data-astro-cid-ngnkntkh] h2[data-astro-cid-ngnkntkh]{max-width:760px;color:var(--ink);font-size:clamp(2.2rem,5vw,4.7rem);line-height:1;text-transform:none}.maintenance-next[data-astro-cid-ngnkntkh]>.container[data-astro-cid-ngnkntkh]>div[data-astro-cid-ngnkntkh]>p[data-astro-cid-ngnkntkh]{max-width:760px;color:var(--muted);line-height:1.7}.maintenance-next-card[data-astro-cid-ngnkntkh]{padding:28px;border:1px solid var(--line);border-radius:14px;background:var(--white);box-shadow:var(--shadow)}.maintenance-next-card[data-astro-cid-ngnkntkh] strong[data-astro-cid-ngnkntkh]{display:block;margin-bottom:10px;color:var(--ink);font-size:1.25rem}.maintenance-next-card[data-astro-cid-ngnkntkh] p[data-astro-cid-ngnkntkh]{color:var(--muted);line-height:1.65}.maintenance-next-card[data-astro-cid-ngnkntkh] .primary-btn[data-astro-cid-ngnkntkh]{margin-top:10px}@media (max-width: 980px){.maintenance-answer-grid[data-astro-cid-ngnkntkh],.maintenance-sign-grid[data-astro-cid-ngnkntkh],.maintenance-dark-grid[data-astro-cid-ngnkntkh],.maintenance-next-grid[data-astro-cid-ngnkntkh]{grid-template-columns:1fr}.maintenance-dark-grid[data-astro-cid-ngnkntkh]{gap:30px}}@media (max-width: 640px){.maintenance-task-grid[data-astro-cid-ngnkntkh],.maintenance-safety-note[data-astro-cid-ngnkntkh]{grid-template-columns:1fr}.maintenance-card[data-astro-cid-ngnkntkh]{padding:22px}.maintenance-next-card[data-astro-cid-ngnkntkh] .primary-btn[data-astro-cid-ngnkntkh]{width:100%}}